# MIT App Inventor vs Harmony PBA/RP

MIT App Inventor and Harmony PBA/RP are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MIT App Inventor ships an update every 3 months, Harmony PBA/RP every 2 months. The most recent releases landed on October 20, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | MIT App Inventor | Harmony PBA/RP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (7 ratings)](https://appshunter.io/ios/app/mit-app-inventor/id1422709355/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 19.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 49 MB | 41 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Massachusetts Institute of Technology](https://appshunter.io/developer/353590322) | [Harmony Public Schools](https://appshunter.io/developer/957353321) |

## What reviewers say

### MIT App Inventor

[App page](https://appshunter.io/ios/app/mit-app-inventor/id1422709355)

Learn programming and build mobile applications using a visual, block-based interface. This educational tool helps users understand computational thinking and design their own projects, with built-in tutorials and over 60 components for diverse app creation.

**Highlights:** Visual block-based programming, Mobile app development, Computational thinking education, Built-in tutorials, Over 60 app components, Project testing and debugging

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and responsive
- 💡 Great for learning and creating apps
- 👍 Useful for school and coding classes

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 🔌 Connectivity issues, especially with iOS devices
- 👎 Confusing and outdated user interface
- ⚠️ Unreliable and glitchy performance

**Reported bugs**

- App frequently crashes or freezes
- Connectivity problems when trying to test apps
- Inconsistent behavior and unexpected errors

**Requested features**

- Improved compatibility with modern devices and operating systems
- More intuitive and user-friendly interface
- Better error handling and debugging tools


### Harmony PBA/RP

[App page](https://appshunter.io/ios/app/harmony-pbarp/id6791311754)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MIT App Inventor free?

MIT App Inventor is free to download, with no in-app purchases.

### Is Harmony PBA/RP free?

Harmony PBA/RP is free to download, with no in-app purchases.

### Do MIT App Inventor or Harmony PBA/RP have ads?

Neither MIT App Inventor nor Harmony PBA/RP shows ads.

### Which is updated more often, MIT App Inventor or Harmony PBA/RP?

MIT App Inventor ships an update every 3 months, and Harmony PBA/RP every 2 months. Most recently, MIT App Inventor was updated on October 20, 2026 and Harmony PBA/RP on October 15, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*